Honeywell T7200 - Page 23

23 63-4038—7
T7200/T7300/Q7300
WIRING DIAGRAMS
+
TR
TR1
SO
SR
+
5
+
S
+
S
1
2
3
TT1
P
P1
MINIMUM POSITION
ADJUSTMENT
1S1
4
1K
2K
18
T
T1
P1
P
MIXED AIR SENSOR
MINIMUM POSITION
TR
TR1
24 VAC
M7415 ACTUATOR
W7459A ECONOMIZER PACKAGE
C7150B MIXED
OR DISCHARGE
AIR SENSOR
RETURN AIR
ENTHALPY
SENSOR
C7400
OUTDOOR
AIR ENTHALPY
SENSOR
C7400
G
L1
(HOT)
L2
1
COOL 1
HEAT 1
FAN
T7200A
WALLPLATE
W
R
X
Y1
W1
RH
RC
Y1
Y2
W1
G
HVAC EQUIPMENT
TERMINAL STRIP
C
T6301 AMBIENT
LOCKOUT CONTROL
50
o
F SETPOINT
6
2
3
4
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED. 24 VAC SECONDARY.
ASSURE THAT EQUIPMENT TRANSFORMER IS SIZED TO HANDLE THE EXTRA LOAD OF THE ECONOMIZER, ACTUATOR,
T7200 AND WALLPLATE
AN ELECTRONIC SWITCH THAT CLOSES WHEN POWERED BY A 24 VAC INPUT.
RELAYS 1K AND 2K ACTUATE WHEN THE ENTHALPY SENSED BY THE C7400 IS HIGHER THAN THE ENTHALPY SETPOINT A-D.
FACTORY INSTALLED 620 OHM, 1 WATT, 5% RESISTOR SHOULD BE REMOVED ONLY IF A C7400 ENTHALPY SENSOR IS
ADDED TO SR AND + FOR DIFFERENTIAL ENTHALPY.
FIELD INSTALLED JUMPER.
1
2
3
4
5
6
M4407
5
R
Fig. 24—T7200A with 1-stage cooling system with differential enthalpy changeover using W7459A/C7400 with
M7415 Actuator.